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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

Based on the geometric mean measured test concentrations, the ErC50 (0 - 72 h) value was 38 mg/l with 95% confidence limits of 31 - 47 mg/l, the ErC10 was estimated at 1.3 mg/l and the No Observed Effect Concentration at 72 hours was 0.53 mg/l.

Key value for chemical safety assessment

EC50 for freshwater algae:
38 mg/L
EC10 or NOEC for freshwater algae:
1.3 mg/L

Additional information

The effect of the test material on the growth of Scenedesmus subspicatus has been investigated over a 72-Hour period. Based on nominal concentratns ErC50 (0 - 72 h) value of 38 mg/l with 95% confidence limits 31 - 46 mg/l and an ErC10 of 2.1 mg/l. The nominal No Observed Effect Concentration at 72 hours was 1.0 mg/l.